is 2 2841031 - 1
has 855236 decimal digits
takes 0.219 GHz-days to do one PRP test
Last-known PrimeNet details:
-unknown- L-L tests remaining
ResidueStatus
L-L-unknown--unknown-
PRP-unknown--unknown-

 Trial FactoringP-1 FactoringCombined
LimitGHz-daysProbabilityB1B2GHz-daysProbabilityGHz-daysProbabilityProb over default TF
Actual26710.458967.1642%----10.458967.1642%4.4523%
PrimeNet2590.027062.7119%130002400000.00282.9912%0.029965.7030%2.9912%
GPU722630.561865.0794%160002600000.00331.8279%0.565166.9072%1.8279%
Difference+4+9.8971+2.0848%-16000-260000-0.0033-1.8279%+9.8938+0.2569%+0.2569%

Known prime factors (3 factors, 168.7 bits, 0.00593846% known):
Remaining cofactor is not a probable-prime

P-1GHz-days
exponentfactordigitsbits*kdate foundmin B1min B2min. TFmin. P-1normal P-1
284103174578256983031342.7621312521
3 × 7 × 62501
-7625012.259e-70.00040.0007
284103119149313318481420091960.732337013452484
22 × 571 × 1483 × 99497
2016-03-011483994970.09390.00080.0011
2841031429630883890804539832065.2207561179091161
33 × 23 × 37 × 53 × 83 × 239 × 313
2018-08-012393134.93692.722e-55.447e-5

4 Composite Factors:
exponentprime factorscomposite factordigitsbits*
28410311428122409714266350182353431072732103.494
284103132041122466654744808581523269084933107.982
28410318227136406921127971090971127677367184738125.952
284103161356549318980595573245947347008872294723814677564
1
51168.714
P-1 results:
Exponent "2841031" not found


Trial Factoring results:
 BitsFactorGHz-Daysworth
dateuseridcompidfromtofactorbits*digitsspentsaved
2016-03-01T12:41:37TJAOIManual testing26026160.732190.0400.4460.081
2018-08-01T12:46:45TJAOIManual testing26526665.220202.3690.4464.816


ECM factoring results:
Total ECM effort:0.313 GHz-days
Estimated T-Level:0.150
DigitsB1CurvesCompleteFacMiss
20110003 / 1000.03097.030%
25500003 / 2800.01198.932%

ECM Summary

B1B2factorcurvesGHz-days
50000500000030.313


Lucas-Lehmer results:
Exponent "2841031" not found


PRP results:
dateuseridcompidcofactorsres64PRP
2017-10-22T12:31:14Oliver KruseGTX-0
7457825698303
1914931331848142009
5A05BF31F64598__no
2017-12-07T09:42:01kkmrkkblmbrbkc4.xlarge
7457825698303
1914931331848142009
5A05BF31F64598__no
2018-08-02T16:42:35_p95holder_g_PRPt17_TFL8
7457825698303
1914931331848142009
42963088389080453983
5A05BF31F64598__no


P-1 factor-bounds graph:
100
101
102
103
104
100
101
102
103
104
105
TF factor-bounds graph:
267
266
261
240
250
260
270
280
290
2100
Last modified: 2018-08-02T16:42:35+00:00